The de-normalization causes difficulty on data retrieval, analysis, and quality control.

这种不规范将为数据检索、分析和质量控制增加难度。

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In pilot and field studies, test takers took both the existing TOEIC test and the new test. Statistical analysis of the results confirmed that the difficulty level of the two tests was equivalent.

在试验研究中，考生同时参加了现行托业考试和新托业考试，考试结果的数据分析表明两个考试的难度是相同的。

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Nowadays, Law circle has different analysis about the expression, cause, countermeasure of the "Law enforcement difficulty".

法学界对“执行难”的表现、原因、对策等的分析不尽一致。

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Today we will address two enduring barriers to progress toward higher levels of IT maturity, the fear of performing an analysis and the difficulty of convincing others to join the party.

FORBES: Why CIOs Fail at Increasing Awareness Through Enterprise Architecture

But the audit is reportedly not going to include a cost-benefit analysis, owing to the difficulty of quantifying such aspects of EU membership as foreign affairs influence.

BBC: William Hague launches full 'audit' of EU law and the UK